Hard to believe - the 12c introduced in 1980/1981 - one of the premier technologies at the time (keep in mind, no one had cell phones then)... and for it to STILL be a current product ~29 years later - amazing - what other electronic product has had anywhere near this life?

I'd love to see a 12C Droid app. Tried downloading the RPNCalc free app, but it doesn't have a fin calc, and the website provided just errors out.

Hard to believe - the 12c introduced in 1980/1981 - one of the premier technologies at the time (keep in mind, no one had cell phones then)... and for it to STILL be a current product ~29 years later - amazing - what other electronic product has had anywhere near this life?

I'd love to see a 12C Droid app. Tried downloading the RPNCalc free app, but it doesn't have a fin calc, and the website provided just errors out.

Click to expand...

I can't think of anything else comparable thats for sure.

RPNCalcPro (paid) version has the financial calc - its actually pretty good.

I think one of the reasons why we haven't seen an Android version yet is the current lack of any opensource versions of the voyager calcs. Nonpareil HP calc simulator (Nonpareil: High-Fidelity Calculator Simulator) used to have them included, but licensing issues meant they needed to be seperated out.

I started using the 11C in Jr High - given to me by a friend that was a NASA engineer. I loved it when kids in class would ask to borrow my calculator and had no idea what was going on. 99.9% of the time, the first words out of their mouth was "Where's the equals?". lol.

What about the HP 48? It is using reverse polish notation, too. The android app is named 'droid48' an can be downloaded free in the market.

Click to expand...

Yeah thats a really cool port as well.

I think people like what they are used too. In the HP-12C's case, its a financial calc with RPN. The HP-48 is a complex scientific graphical calc. One of the main reasons why the voyager range of calcs were so popular was the fact they just gave you an answer without the frilly bits. And they looked kinda cool

Definitely would buy the HP12c app and hardly know anyone in finance who does not carry the 12C around. Great on the iphone not having to carry the 12C. I still have the same 12C I had in MBA school in 1979 to 1981. Amazingly great. Cannot use normal calculators anymore. It was great having exactly the same layout on the iPhone 12C. Am on withdrawal now without it in the Droid.

Hi all; I'm the author of RpnCalcPro. It doesn't have the same layout as the HP12C (I intended to use it in portrait mode), but it has all the same functions except for programmability. It's $5 at present. More info at RpnCalc Pro

I've gotten some feedback from people asking that I make they layout exactly like an HP12 in landscape mode, so I'm working on it. It's a little tricky because an android screen is much smaller than a real HP12, so squeezing it all in is rather difficult. I have it working now for the Archos, and with a little tweaking, I can get it to fit on G1 and Droid. Look for the new layout soon.

Since I have a number of interested people here, I'd like to do a quick user survey:

Do you use the programming functionality of the HP12? I haven't seen a need to add it to the calculator app, but I might if there's a demand.

Do you find the HP12's n,i,PV,PMT,FV functions ambiguous? That is, do you have trouble knowing if the key will enter a value, or compute it? (I added a "Find" key to my calculator to remove the ambiguity, but maybe it's not needed.)

Also: the cash-flow calculations (Cf0, Cfi, etc.) Do you ever use these? Do you edit the stored values? Do you change the Ni values?

Other differences between the android app and the real thing: I have 20 memories, whereas I think the real one only has 10. The stack has 16 levels instead of 4. Statistics have their own registers rather than being stored in the main memory registers. I'm going to guess this doesn't cause anybody problems.

I wonder, given the current lack of opensource options for a developer to create a voyager calc, if we email developers of voyager emulators for other devices & attach this forum threads http address? Just to show there is a level of interest & people are willing to actually pay for an android version.

Hi all; I'm the author of RpnCalcPro. It doesn't have the same layout as the HP12C (I intended to use it in portrait mode), but it has all the same functions except for programmability. It's $5 at present. More info at RpnCalc Pro

I've gotten some feedback from people asking that I make they layout exactly like an HP12 in landscape mode, so I'm working on it. It's a little tricky because an android screen is much smaller than a real HP12, so squeezing it all in is rather difficult. I have it working now for the Archos, and with a little tweaking, I can get it to fit on G1 and Droid. Look for the new layout soon.

Since I have a number of interested people here, I'd like to do a quick user survey:

Do you use the programming functionality of the HP12? I haven't seen a need to add it to the calculator app, but I might if there's a demand.

Do you find the HP12's n,i,PV,PMT,FV functions ambiguous? That is, do you have trouble knowing if the key will enter a value, or compute it? (I added a "Find" key to my calculator to remove the ambiguity, but maybe it's not needed.)

Also: the cash-flow calculations (Cf0, Cfi, etc.) Do you ever use these? Do you edit the stored values? Do you change the Ni values?

Other differences between the android app and the real thing: I have 20 memories, whereas I think the real one only has 10. The stack has 16 levels instead of 4. Statistics have their own registers rather than being stored in the main memory registers. I'm going to guess this doesn't cause anybody problems.

Very interested in this app. I don't run programs on the 12C, so that's not a big deal for me. I don't find the keys ambiguous; I've been using them for many years. I definitely use CF0 and the other subscript and superscript keys.
Ideally the app would look just like the 12C and still be easy to precisely hit each of the keys - I know that's a tall order. I used a 12c emulator on a Palm Treo that worked by showing only half the 12C at a time, requiring you to toggle back and forth. That really undercut the usability of it for me.
Good luck!

I need to put in a vote for the CF0 CFi functions. I use them alot on my 12C. I have used the 12C from Lygea on my WinMo phone for years. Lygea is able to fit the full functionality of the 12C on a smartphone screen in both portrait and landscape. You may be able to gain inspiration from their layout.